function getWindowHeight() {
			var windowHeight = 0;
			if (typeof(window.innerHeight) == 'number') {
				windowHeight = window.innerHeight;
			}
			else {
				if (document.documentElement && document.documentElement.clientHeight) {
					windowHeight = document.documentElement.clientHeight;
				}
				else {
					if (document.body && document.body.clientHeight) {
						windowHeight = document.body.clientHeight;
					}
				}
			}
			return windowHeight;
		}
		function setFooter() {
			if (document.getElementById) {
				var windowHeight = getWindowHeight();
				if (windowHeight > 0) {
					var poweredBy = document.getElementById('PoweredBy');
					var contentHeight = document.getElementById('content').offsetHeight+210;
					var footerElement = document.getElementById('footer');
					var footerNav = document.getElementById('footerNav');
					var footerHeight  = footerElement.offsetHeight;
					footerNav.style.top = (contentHeight + 10)+'px';
					contentHeight += footerNav.offsetHeight+10;
					if (windowHeight > (contentHeight+footerElement.offsetHeight)) {
						footerElement.style.bottom = '0px';
						poweredBy.style.bottom = '13px';
					}
					else {
						footerElement.style.top = contentHeight+'px';
						poweredBy.style.top = contentHeight+13+'px';
					}
				}
			}
		}
		window.onload = function() {
			setFooter();
		}
		window.onresize = function() {
			setFooter();
		}